I have burned through a tank now so I figured I could add my review. I purchased a used Flowbox, one of the early ones I am assuming (due to it not being powdercoated) and installed it in my Xjet with rear side exhaust (exits just at the right rear corner of the hull).
Pros:
Cons:
Pros:
- Great design, nice welds, looks good
- The shape/size works well in my hull (SJ based) and it is very light, the thin profile gives great clearance for cables coming through the pole bracket
- I like the mandrel bent tubing rather than 90 degree welded pieces, it might not equal more performance but it looks like it would
- Sounds good, a bit louder than stock but not as loud as my previous TDR and Xmetal boxes
Cons:
- Had to play around with the angle it sat at to get the inlet to play nice with my FP dry pipe, this was tricky as it really wanted to push my pipe out of alignment
- The mandrel bent in/out makes it pretty wide, I can't imagine it would fit in anything narrower than a RN (FX1) but most aftermarket hulls are likely wider
- The outlet tubing seemed oversized, I am using a Rad Dude exhaust hose and didn't measure either so I cannot confirm if the outlet is too large or the RD tube is to small but it was a struggle to install on that end and didn't allow me to use the supplied T-Bolt clamp that came with the Rad Dudes tube
- It would be too loud with front exhaust, or if you have sensitive water cops/waterfront property owners. It is borderline too loud with my rear side exhaust when it is out of the water but I will be moving my exhaust outlet to the rear this winter
